##ta ##p in september 2009 . in october 2010 , it was released as a microsoft windows download which was ported to steam . the game was ported to two online app services ( google play and the amazon apps ##tore ) in december 2012 . a remastered mobile port , created using christian whitehead ' s retro engine previously used in the 2011 re ##rel ##ease of sonic cd , was released on ios , replacing the original port , on may 15 , 2013 with an android version released the following day . the port features wide ##screen graphics , the optional ability to spin dash , a time attack mode , and the unlock ##able option to play as tails or knuckles the ec ##hid
##tap in september 2009. in october 2010, it was released as a microsoft windows download which was ported to steam. the game was ported to two online app services ( google play and the amazon appstore ) in december 2012. a remastered mobile port, created using christian whitehead's retro engine previously used in the 2011 rerelease of sonic cd, was released on ios, replacing the original port, on may 15, 2013 with an android version released the following day. the port features widescreen graphics, the optional ability to spin dash, a time attack mode, and the unlockable option to play as tails or knuckles the echid